605689249 has 8 divisors (see below), whose sum is σ = 669804192. Its totient is φ = 543083040.

The previous prime is 605689219. The next prime is 605689283. The reversal of 605689249 is 942986506.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 605689249 - 2²⁵ = 572134817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605689219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376339 + ... + 377944.

It is an arithmetic number, because the mean of its divisors is an integer number (83725524).

Almost surely, 2^605689249 is an apocalyptic number.

It is an amenable number.

605689249 is a deficient number, since it is larger than the sum of its proper divisors (64114943).

605689249 is a wasteful number, since it uses less digits than its factorization.

605689249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754367.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 605689249 is about 24610.7547425917. The cubic root of 605689249 is about 846.0901159997.

The spelling of 605689249 in words is "six hundred five million, six hundred eighty-nine thousand, two hundred forty-nine".